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ThmDex – An index of mathematical definitions, results, and conjectures.
F11468
Formulation 0
Let Xj be a D11: Set for each jJ.
Then X={Xj}jJ is an N-wise disjoint set collection with respect to N2,3,4, if and only if j1,,jNJ(n,m1,,N(nmjnjm)Nn=1Xjn=)